4. HYLA. 401 
thie tibio-tarsal articulation reaches the front of the orbit. Skin 
smooth above, sides rugulose. Dark olive above, with a short lon- 
-gitudinal black bar over each scapula, and one from eye to eye, with 
a trace along the coccyx ; below yellowish. Male with a large gular 
vocal sac. From snout to vent 28 millim. 
Mexico. 
104. Hyla punctariola. 
Hyla punctariola, Peters, Mon. Berl. Ac, 1863, p. 462; Cope, Journ. 
Ae, Phailad. (un. 8.) viii. 1876, p. 106. 
Tongue heart-shaped, openly emarginate. Vomerine teeth in two 
_ small groups behind the level of the choane. Snout slightly longer 
than the diameter of the eye; tympanum somewhat more than one 
third the diameter of the eye. Fingers quite free; toes three- 
- fourths webbed; disks moderate. The hind limb being carried 
forwards along the body, two thirds of the tarsus extend beyond the 
tip of the snout. Skin smooth. Brown above; across band between 
the eyes and a large spot on the snout ; upper lip with whitish bars 
alternating with brown ones; limbs cross-barred with dark brown ; 
fingers and toes cross-barred with brown and white ; beneath dirty 
white ; the throat brown, dotted with white. From snout to vent 
22 millim. 
Veragua. 
Mr. Cope, l. ¢., distinguishes three varieties of coloration, which 
he describes as ‘ subspecies,” suspecting, however, that they may be 
true species. These are named pictipes, mesta, and monticola. All 
three from Costa Rica. Mr. Cope describes these Costa-Rican 
specimens as having a web at the base of the outer fingers, and the 
“heel extends nearly or quite to the end of the muzzle,” thus 
differing widely from the original description by Prof. Peters. 
105. Hyla bistincta. 
‘Hyla bistincta, Cope, Proc. Amer, Philos. Soc. xvii. 1877, p. 87. 
Vomerine teeth in two small groups between the choane. Head, 
particularly the interorbital region, broad and flat ; canthus rostralis 
distinct ; tympanum exceedingly small, one fifth the diameter of the 
eye, overhung by a thick dermal fold. Fingers free ; toes not fully 
webbed. ‘The hind limb being carried forwards along the body, the 
tibio-tarsal articulation reaches nearly the tip of the snout. Dark 
bluish plumbeous above, yellow beneath; sides marbled with the 
two colours; hinder side of thighs pale brown, with a few yellow 
specks along the superior border. Male with rugosities on the inner 
side of the first finger during the breeding-season. From snout to 
vent 45 millim. 
Vera Cruz... 
